This Week in Nature

In early online publication, scientists at the Broad Institute have used chromatin-state maps to discover 1,600 large intergenic RNAs across four mouse cell types, about 95 percent of which showed strong evolutionary conservation. A functional genomics approach found that they play a range of functions, including for embryonic stem cell pluripotency and cell proliferation.

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Direct-to-consumer genetic testing companies have offered to test families separated at the southern US border, but that raises ethical issues.

CNBC reports that confirming a positive result from 23andMe's BRCA health report can be expensive.

The New York Times reports on a project to develop a tree DNA database to uncover illegal logging.

In PLOS this week: links between gut microbiome and colorectal cancer mutations, targeted sequencing uncovers genetic susceptibilities to epilepsy in Koreans, and more.